<template>
    <div>
        <!--面包屑导航区域-->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!--卡片视图区域-->
        <el-card class="box-card">
            <!--搜索与添加区域-->
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>

            <!--用户列表区域-->
            <el-table :data="showUserList" border stripe>
                <el-table-column label="#" type="index">
                </el-table-column>
                <el-table-column label="姓名" prop="username">
                </el-table-column>
                <el-table-column label="邮箱" prop="email">
                </el-table-column>
                <el-table-column label="电话" prop="mobile">
                </el-table-column>
                <el-table-column label="角色" prop="role_name">
                </el-table-column>
                 <el-table-column label="状态">
                     <template slot-scope="scope">
                        <el-switch
                            v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                     </template>
                </el-table-column>
                 <el-table-column label="操作">
                     <template slot-scope="scope">
                         <!--修改按钮-->
                         <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                         <!--删除按钮-->
                         <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                         <!--删除角色按钮-->
                         <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
                         </el-tooltip>
                     </template>
                </el-table-column>
            </el-table>

            <!--分页区域-->
             <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[1, 2, 5, 10]"
                :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total">
            </el-pagination>
        </el-card>

        <!--添加用户的对话框-->
        <el-dialog
            title="添加用户"
            :visible.sync="addDialogVisible"
            width="30%"
            @close="addDialogClosed">
            <!--内容主体区域-->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!--底部区域-->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>

        <!--修改用户的对话框-->
        <el-dialog
            title="修改用户"
            :visible.sync="editDialogVisible"
            width="30%"
            @close="editDialogClosed">
            <!--修改用户内容区域-->
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUser">确 定</el-button>
            </span>
        </el-dialog>

        <!--分配角色的对话框-->
        <el-dialog
            title="分配角色"
            :visible.sync="setRoleDialogVisible"
            width="30%">
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择角色">
                        <el-option
                            v-for="item in rolesList"
                            :key="item.id"
                            :label="item.roleName"
                            :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="setRoleDialogVisible = false">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        //验证邮箱的规则
        var checkEmail = (rule, value, callback) => {
            //验证邮箱的正则表达式
            const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/

            if(regEmail.test(value)){
                //合法的邮箱
                return callback();
            }
            callback(new Error('请输入合法的邮箱'));
        };

        //验证手机号的规则
        var checkMobile = (rule, value, callback) => {
            //验证邮箱的正则表达式
            const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/

            if(regMobile.test(value)){
                //合法的邮箱
                return callback();
            }
            callback(new Error('请输入合法的手机号'));
        }

        return {
            //已选中的校色id值
            selectedRoleId:'',
            //所有角色的数据列表
            rolesList:[],
            //需要被分配权限的用户信息
            userInfo:{},
            //是否显示分配角色对话框
            setRoleDialogVisible:false,
            //查询到的用户信息对象
            editForm:{
            },
            editFormRules:{
                email:[
                    {require:true,message:'请输入邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {require:true,message:'请输入电话',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ]
            },
            //控制修改用户对话框的显示和隐藏
            editDialogVisible:false,
            //控制添加用户对话框的显示和隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:'',
            },
            //添加表单的验证规则对象
            addFormRules:{
                username:[
                    {require:true,message:'请输入用户名',trigger:'blur'},
                    {min:3,max:10,message:'用户名的长度在3~10个字符之间',trigger:'blur'}
                ],
                password:[
                    {require:true,message:'请输入密码',trigger:'blur'},
                    {min:6,max:15,message:'密码的长度在6~15个字符之间',trigger:'blur'}
                ],
                email:[
                    {require:true,message:'请输入邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {require:true,message:'请输入电话',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ]
            },
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                //当前的页数
                pagenum:1,
                pagesize:2
            },
            //保存一个用户列表信息
            userlist:[{
                        id:100,
                        date: '2016-05-02',
                        username: '宋浩',
                        address: '湖北省仙桃市1518弄',
                        email:'425008064@qq.com',
                        mobile:'18601342954',
                        role_name:'超级管理员',
                        mg_state:true,
                    }, {
                        id:101,
                        date: '2016-05-04',
                        username: '唐梦平',
                        address: '湖北省荆门市1517弄',
                        email:'amyTang@163.com',
                        mobile:'18018688073',
                        role_name:'测试人员',
                        mg_state:false,
                    }, {
                        id:102,
                        date: '2017-05-04',
                        username: '张无忌',
                        address: '上海市北蔡2847弄',
                        email:'wuji@163.com',
                        mobile:'18318688073',
                        role_name:'开发人员',
                        mg_state:true,
                    }, {
                        id:103,
                        date: '2018-05-04',
                        username: '周芷若',
                        address: '武汉市江夏区阳光大道100号',
                        email:'zhouzhiruo@163.com',
                        mobile:'18318688073',
                        role_name:'开发人员',
                        mg_state:true,
                    }],
            total:4,
            showUserList:[]
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        //分配角色
        async setRole(userInfo){
            this.userInfo = userInfo
            //获取角色列表
            // const {data,res} = await this.$http.get('roles')
            // if(res.meta.status !== 200){
            //     return this.$message.error('获取角色列表失败')
            // }
            // this.roleList = res.data
            this.rolesList = [
                {id:1,roleName:'主管'},
                {id:2,roleName:'开发人员'},
                {id:3,roleName:'测试'},
                {id:4,roleName:'总监'},
                {id:5,roleName:'CEO'},
                {id:6,roleName:'产品经理'}
            ]
            this.setRoleDialogVisible = true
        },  

        //根据id进行用户信息的删除
        async removeUserById(id){
            //弹框进行提示，询问用户是否删除数据
            const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
                }).catch(err => {
                    return err
                });
            
            //如果用户确认删除，则返回confirm
            //如果用户取消删除，则返回cancel
            if(confirmResult != 'confirm'){
                return this.$message.info('已经取消删除')
            }

            //发起请求进行用户删除
            const {data,res} = await this.$http.delete('users/' + id)

            if(res.meta.status !== 200){
                return this.$message.error('删除用户失败')
            }
            
            this.$message.error('删除用户成功')
            this.getUserList()
            console.log(confirmResult)        
        },
        //修改用户信息并提交
        editUser(){
            this.$refs.editFormRef.validate(async valid => {
                if(!valid){
                    return;
                }
                //发起http请求进行修改
                const {data,res} = await this.$http.put('users/' + this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile}
                )

                if(res.meta.status !== 200){
                    return this.$message.error('更新用户信息失败')
                }
                //关闭对话框
                this.showEditDialog = false
                //刷新数据列表
                this.getUserList();
                //提示修改成功
                this.$message.success('更新用户信息成功')
            });
        },
        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            //对表单字段内容重置
            this.$refs.editFormRef.resetFields();
        },
        //展示编辑用户的对话框
        async showEditDialog(){
            //发起一个http请求
            // const {data,res} = await this.$http.get('users/' + id)
            // if(res.meta.status !== 200){
            //     return this.$message.error('查询用户信息失败')
            // }

            // //给编辑表单数据进行赋值
            // this.editForm = res.data;

            this.editForm = {
                username:'宋浩',
                email:'425008064@qq.com',
                mobile:'18601342954'
            }

            //显示对话框
            this.editDialogVisible = true;
        },
        //点击按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid => {
                if(!valid){
                    return;
                }
                //发起一个添加用户的http请求
                // const {data:res} = await this.$http.post('users',this.addForm.id);
                // if(res.meta.status !== 201){
                //     this.$message.error('添加用户失败')
                // }
                this.$message.success('添加用户成功')

                //隐藏对话框
                this.addDialogVisible = false
                this.getUserList()
            });
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields();
        },
        //监听swith用户状态开关的改变
        userStateChanged(userinfo){
            //打印状态信息
            console.log(userinfo.mg_state)

            //这里应该发送http请求
            var len=this.userlist.length;
            for(var i = 0; i<len; i++){
                var user = this.userlist[i]
                if(user.id == userinfo.id){
                    user.mg_state = userinfo.mg_state
                }
            }
            getUserList();
        },
        //监听pageSize改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize;
            this.getUserList();
        },
        //监听页码值改变的事件
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage;
            this.getUserList();
        },
        async getUserList(){
            //请求获取用户列表信息
            // const {data,res} = await this.$http.get('users',{params:this.queryInfo})
            // if(res.meta.status !== 200){
            //     return this.$message.error('获取用户列表失败')
            // }
            // this.userlist = res.data.userlist
            // this.total = res.data.total
            // console.log(res)

            //alert('每页显示:' + this.queryInfo.pagesize + ',当前第' + this.queryInfo.pagenum + '页');
            //首先进行清空
            this.showUserList = []

            var len = this.userlist.length
            var searchUserList = []
            for(var i = 0; i<len; i++){
                var user = this.userlist[i]
                if(this.queryInfo.query != ''){
                    if(user.username.indexOf(this.queryInfo.query) != -1){
                        searchUserList.push(user);
                    }
                }else{
                    searchUserList.push(user);
                }
            }

            // //获取对应的记录列表
            var start = (this.queryInfo.pagenum - 1) * this.queryInfo.pagesize;
            len = searchUserList.length
            for(var i = 0; i<len; i++){
                if(i >= start && i < start + this.queryInfo.pagesize){
                    var user = searchUserList[i]
                    this.showUserList.push(user);
                }
            }
            this.total = searchUserList.length
        }
    }
}
</script>

<style lang="less" scoped>
    .text {
        font-size: 14px;
    }

    .item {
        margin-bottom: 18px;
    }

    .clearfix:before,
    .clearfix:after {
        display: table;
        content: "";
    }
    .clearfix:after {
        clear: both
    }

    .box-card {
        width: 100%;
    }
</style>